Dwayne Johnson: My school thought I was an undercover cop

London: Wrestler-turned-actor Dwayne Johnson has joked that his mature physical appearance in his childhood made his teachers think that he was an undercover cop.

Dwayne Johnson. Pic/Santa Banta

The 44-year-old opened up on this week's "Graham Norton Show" about growing up while looking like a grown-up, reported Digital Spy.

"I moved around a lot following my dad, and every new school - when I was around 14, 15, 16 - thought I was an undercover cop. I switched high school four times, I didn't have a lot of friends and no play with the ladies," Johnson said.

Speaking about the late Muhammad Ali, Johnson continued: "My dad was a boxer and when I was a kid I had the opportunity to hang out with Ali. It was very cool. When he passed away I was devastated."